These spooky, seasonal collectibles possess a spellbinding history.

Treat Sacks

Treat Sacks

Midcentury paper trick-or-treat bags sold for pennies at the local five-and-dime. "These days, expect to pay about $30 for a 1950s sack with a simple image, such as a jack-o'- lantern," said Bruce Elsass, one of the nation's preeminent collectors of Halloween accessories. His tip: Search for bags with elaborate illustrations, like this paper version.

1960s Whiskey Glasses

1960s Whiskey Glasses

After World War II, an optimistic and increasingly suburban America embraced the at-home cocktail hour—leading to a glut of novelty barware that included toxin-themed glasses like these. Two companies, Georges Briard and Ceraglass, began making "Name Your Poison" sets in the 1950s, issuing them in different shapes with varying graphics. Ceraglass likely manufactured this particular version in the late '60s. Though the tumblers came in sets of four, six, and eight, this one is a mixed batch: Only the "curare" glass sports a gold mortar-and-pestle icon, while the others feature a skull and crossbones. This type of novelty ware rarely fetches big money, but apothecary-related collectibles are on the rise. The fact that these tumblers have the original stirrers boosts aesthetic and financial value.